The role of teeth is to chew food, to assist in making sound, to protect the mouth, etc. The teeth appear in different situations, which can reflect the health status of the patient’s teeth, teeth present jagged for the following two reasons: 1, physiological, normal teeth are jagged when they first erupt, is a normal physiological state called developmental nodules, do not need to be treated, to be increased intake of food teeth will gradually be smoothed; 2, pathological The jagged teeth are mostly due to abnormal tooth development, such as severe enamel hypoplasia, fluorosis and congenital syphilis teeth. There are also abnormalities in the morphology of multiple teeth, multiple teeth appearing in the incisor area need to be treated in a timely manner, otherwise it will cause the teeth to be unevenly aligned, crowded teeth and other malformations, it is recommended that patients go to the dental hospital for treatment in a timely manner, taking dental x-rays can be clearly diagnosed. Pay attention to brush your teeth in the morning and evening, and rinse your mouth after meals.